Timing Pin Leak

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Timing Pin Leak

Postby Donkey Kong » Wed May 23, 2018 12:38 pm

Just came home with my new 1st Gen. I love how easy this truck is to work on, compared to a 2nd gen. I originally thought the vacuum pump had a small leak, no big deal, I've rebuilt them before and always had good support with Gould gear out of NC, great guys to deal with IMHO.

Either way, once I took a closer look, I noticed the oil leak was actually because the timing pin was missing, and someone had shoved a small rag in the hole. A new pin and o-ring from Pure Diesel products and we were back in business. A little trick, if you have trouble getting the retainer clip into the groove, I found a little high-temp grease allowed to it stick to the end of a deep socket and a gentle tap got the job done.
93 Club Cab W250 NV4500
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fuel pin?
 
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Re: Timing Pin Leak

Postby thrashingcows » Wed May 23, 2018 1:16 pm

Nice....I have yet to use one of those timing pins....just never can get them to lock into place. ;)
1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 330K Km's, M&H spacer, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.


Check out the build....http://www.dieseltruckresource.com/dev/ ... 05923.html
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14mm rotor
 
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Re: Timing Pin Leak

Postby Donkey Kong » Wed May 23, 2018 6:37 pm

I agree, the pin isn’t very useful compaired to other methods for finding TDC.
93 Club Cab W250 NV4500
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fuel pin?
 
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Re: Timing Pin Leak

Postby PToombs » Thu May 24, 2018 2:58 pm

I usually pull the pin out, watch for the hole for TDC, then put it in when I'm done. As hard as the thing comes out, you probably don't even need the darn star keeper.
pete

Just enough power to break everything behind the crankshaft.
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Re: Timing Pin Leak

Postby spencerdiesel » Wed Jun 20, 2018 6:42 pm

When I got the pin lined up I used a scratch awl and marked the balancer
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
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